Related Information for Vast VAST stands for Visual Audio Sensory Theater, and is the brainchild of Los Angeles-based singer-songwriter and musician Jon Crosby.VAST's sound is identifiable as ambient electro-rock with considerable industrial and acoustic influences, usually made with Crosby's traditional acoustic guitar, electronic instruments and processing, drum-driven tracks, and heavy bass. In recent years, however, VAST's sound has been more identifiable with acoustic rock in release.. read more